I think it cna work, though 6 years and a lot of your chosen challengers would have to change. I agree with Loss that they've booked Bryan to be as tough as anyone. Going back the last year now, he had a big showing against Ryback when Ryback was building up to Cena. In June/July he made Orton tap out in a street fight. His losses have been from interference, screw jobs, or other shenanigans. Basically, cut out the Authority screwing with him and costing him matches, let him run with some wins, and then I think it could work.